CVE-2026-15809CWE-116CWE-134

CVE-2026-15809

High · published July 15, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
7.5
In the wild
Unconfirmed
What it is

A flaw was found in CRI-O. The fix for a previous vulnerability (CVE-2022-4318) was incorrect, allowing it to be bypassed. An attacker capable of setting environment variables on a container can inject a newline character into the HOME environment variable. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00183 · 7.5th percentile
Weaknesses
CWE-116 · Improper Encoding or Escaping of Output; CWE-134 · Use of Externally-Controlled Format String
Published
2026-07-15T17:17Z
References (15)
EPSS history
Timeline
  • 15 JUL 12:32Z
    Github.com/cri-o/cri-o: fix bypass for cve-2022-4318 — /etc/passwd injection via home env
    cvelistv5